Watts, OK frost dates
Last spring frostMar 31median date
First fall frostNov 2median date
Growing season216 daysfrost-free
Hardiness zone7aZone 7a
How Watts compares
- In 8 years out of 10, the last spring frost in Watts falls between March 13 and April 18, a 36-day window. The first fall frost falls between October 20 and November 19.
- The median last frost is 4 days earlier than the Oklahoma median of Apr 4.
- Its 216-day growing season is longer than 66% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is 16 days earlier than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 70 nights a year at or below 32°F.
- Compared with Fayetteville, AR, 40 km away, the last frost here is 4 days earlier than there and the growing season is 6 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 13 |
| 50% (median) | March 31 |
| 10% (safe for tender plants) | April 18 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 20 |
| 50% (median) | November 2 |
| 90% (late) | November 19 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Watts, OK
Watts, OK frost dates — last frost Mar 31, first frost Nov 2, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Jan 6 to Jan 20Transplant outside: Mar 3 to Mar 17
Start indoors: Jan 20 to Feb 3Transplant outside: Apr 14 to Apr 28
Start indoors: Jan 20 to Feb 3Transplant outside: Apr 14 to Apr 28
Start indoors: Feb 3 to Feb 17Transplant outside: Apr 7 to Apr 21
Start indoors: Feb 3 to Feb 17Transplant outside: Mar 10 to Mar 24Sow outdoors: Mar 3 to Apr 7Plant for fall: Sep 7 to Oct 5
Start indoors: Feb 3 to Feb 17Transplant outside: Mar 3 to Mar 17Sow outdoors: Mar 3 to Mar 17Plant for fall: Aug 24 to Sep 14
Start indoors: Feb 3 to Feb 17Transplant outside: Mar 17 to Mar 31Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 3 to Feb 17Transplant outside: Mar 10 to Mar 24Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 3 to Feb 17Transplant outside: Mar 17 to Mar 31Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 17 to Mar 3Transplant outside: Apr 21 to May 5Sow outdoors: Apr 21 to May 5
Start indoors: Feb 17 to Mar 3Transplant outside: Apr 7 to Apr 21
Sow outdoors: Feb 17 to Mar 10Plant for fall: Aug 10 to Aug 31
Sow outdoors: Feb 17 to Mar 10Plant for fall: Sep 7 to Sep 28
Sow outdoors: Feb 24 to Apr 7Plant for fall: Sep 21 to Oct 12
Start indoors: Mar 3 to Mar 10Transplant outside: Apr 14 to Apr 21Sow outdoors: Apr 7 to Apr 21Plant for fall: Aug 17 to Aug 31
Start indoors: Mar 3 to Mar 10Sow outdoors: Apr 7 to Apr 21Plant for fall: Aug 24 to Sep 7
Start indoors: Mar 3 to Mar 10Sow outdoors: Apr 7 to Apr 21
Start indoors: Mar 3 to Mar 10Transplant outside: Apr 14 to Apr 28
Sow outdoors: Mar 10 to Apr 7Plant for fall: Aug 10 to Aug 24
Sow outdoors: Mar 10 to Apr 7Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 10 to Mar 31
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 17 to Apr 7Plant for fall: Sep 7 to Sep 28
Sow outdoors: Apr 7 to Apr 28Plant for fall: Aug 17 to Aug 31
Sow outdoors: Apr 7 to Apr 21
Transplant outside: Apr 14 to May 5
Plant for fall: Oct 19 to Nov 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Watts, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 6 – Jan 20 | Mar 3 – Mar 17 | — | — |
| Peppers | Jan 20 – Feb 3 | Apr 14 – Apr 28 | — | — |
| Eggplant | Jan 20 – Feb 3 | Apr 14 – Apr 28 | — | — |
| Tomatoes | Feb 3 – Feb 17 | Apr 7 – Apr 21 | — | — |
| Lettuce | Feb 3 – Feb 17 | Mar 10 – Mar 24 | Mar 3 – Apr 7 | Sep 7 – Oct 5 |
| Kale | Feb 3 – Feb 17 | Mar 3 – Mar 17 | Mar 3 – Mar 17 | Aug 24 – Sep 14 |
| Broccoli | Feb 3 – Feb 17 | Mar 17 – Mar 31 | — | Jul 27 – Aug 17 |
| Cabbage | Feb 3 – Feb 17 | Mar 10 – Mar 24 | — | Jul 27 – Aug 17 |
| Cauliflower | Feb 3 – Feb 17 | Mar 17 – Mar 31 | — | Jul 27 – Aug 17 |
| Okra | Feb 17 – Mar 3 | Apr 21 – May 5 | Apr 21 – May 5 | — |
| Basil | Feb 17 – Mar 3 | Apr 7 – Apr 21 | — | — |
| Peas | — | — | Feb 17 – Mar 10 | Aug 10 – Aug 31 |
| Spinach | — | — | Feb 17 – Mar 10 | Sep 7 – Sep 28 |
| Radishes | — | — | Feb 24 – Apr 7 | Sep 21 – Oct 12 |
| Cucumbers | Mar 3 – Mar 10 | Apr 14 – Apr 21 | Apr 7 – Apr 21 | Aug 17 – Aug 31 |
| Zucchini & Summer Squash | Mar 3 – Mar 10 | — | Apr 7 – Apr 21 | Aug 24 – Sep 7 |
| Winter Squash & Pumpkins | Mar 3 – Mar 10 | — | Apr 7 – Apr 21 | — |
| Melons & Watermelon | Mar 3 – Mar 10 | Apr 14 – Apr 28 | — | — |
| Carrots | — | — | Mar 10 – Apr 7 | Aug 10 – Aug 24 |
| Beets | — | — | Mar 10 – Apr 7 | Aug 24 – Sep 7 |
| Potatoes | — | — | Mar 10 – Mar 31 | — |
| Swiss Chard | — | — | Mar 17 – Apr 14 | Aug 24 – Sep 7 |
| Cilantro | — | — | Mar 17 – Apr 7 | Sep 7 – Sep 28 |
| Green Beans | — | — | Apr 7 – Apr 28 | Aug 17 – Aug 31 |
| Sweet Corn | — | — | Apr 7 – Apr 21 | — |
| Sweet Potatoes | — | Apr 14 – May 5 | — | — |
| Garlic | — | — | — | Oct 19 – Nov 23 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Kansas 2 Ne, OK weather station, 17 km away (elevation 1,191 ft (363 m)).
Frost dates near Watts
- Colcord Mar 31 · Nov 2
- Westville Mar 31 · Nov 4
- Proctor Mar 31 · Nov 4
- Kansas Mar 31 · Nov 2
- Oaks Mar 31 · Nov 2
- Twin Oaks Mar 31 · Nov 2
- Moodys Apr 4 · Oct 31
- Rose Mar 31 · Nov 2
- Welling Apr 4 · Oct 31
- Stilwell Mar 31 · Nov 4
Frequently asked questions
When is the last frost in Watts, OK?
The median last spring frost in Watts, OK is March 31. There is still about a 10% chance of frost after April 18, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Watts, OK?
The median first fall frost is November 2, with about a 10% chance of frost before October 20.
How long is the growing season in Watts, OK?
About 216 days between the median last spring frost and first fall frost.
What planting zone is Watts, OK?
Watts, OK is in USDA hardiness zone 7a.